LibreOffice enhwmf.cxx EnhWMFReader::ReadEnhWMF out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in LibreOffice and classified as critical. The affected element is the function EnhWMFReader::ReadEnhWMF of the file vcl/source/filter/wmf/enhwmf.cxx. The manipulation leads to out-of-bounds write. This vulnerability is traded as CVE-2016-10327. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in LibreOffice (Office Suite Software) (the affected version unknown). It has been rated as critical. This issue affects the function EnhWMFReader::ReadEnhWMF of the file vcl/source/filter/wmf/enhwmf.cxx. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

LibreOffice before 2016-12-22 has an out-of-bounds write caused by a heap-based buffer overflow related to the EnhWMFReader::ReadEnhWMF function in vcl/source/filter/wmf/enhwmf.cxx.

The bug was discovered 12/22/2016. The weakness was shared 04/14/2017 with Google Project Zero (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2016-10327 since 04/14/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 62 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 97496 (LibreOffice < 5.1.6 / 5.2.5 / 5.3.0 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276641 (Fedora Security Update for libreoffice (FEDORA-2017-7a7d2044c9)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97496) and SecurityFocus (BID 97668†). The entries VDB-99843 and VDB-99903 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97496
Nessus Name: LibreOffice < 5.1.6 / 5.2.5 / 5.3.0 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for libreoffice USN-3273-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

12/22/2016 🔍
02/22/2017 +62 days 🔍
03/02/2017 +8 days 🔍
04/14/2017 +43 days 🔍
04/14/2017 +0 days 🔍
04/14/2017 +0 days 🔍
04/14/2017 +0 days 🔍
04/14/2017 +0 days 🔍
11/29/2022 +2055 days 🔍

Sourcesinfo

Advisory: 7485fc2a1484f31631f62f97e5c64c0ae74c6416⛔
Organization: Google Project Zero
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10327 (🔍)
GCVE (CVE): GCVE-0-2016-10327
GCVE (VulDB): GCVE-100-99809
SecurityFocus: 97668 - LibreOffice CVE-2016-10327 Heap Buffer Overflow Vulnerability
OSVDB: - CVE-2016-10327 - LibreOffice - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 04/14/2017 11:02
Updated: 11/29/2022 09:34
Changes: 04/14/2017 11:02 (66), 08/30/2020 17:05 (14), 11/29/2022 09:34 (5)
Complete: 🔍
Cache ID: 216:008:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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